Question

will the mass and weight of an object on the earth be same as their value on Mars and why​

Answer 1

the value of mass of every object is same everywhere but weight is not same because weight means the force that Earth attracts every object towards itself and it is the gravitational force between Mars gravitational force is less or more

Answer 2

No, Only the value of mass will be same on Mars as it is on the Earth but the value of weight will differ on Mars.

This can be explained as:-

Mass is the amount of Substance present in the body which is not gonna change anywhere. Mass will remain the same everywhere.

But Weight is the the gravitational force applied by the earth on the object due to it's gravity and it will have different values on different planets and all the planets have different gravitational pull force.

Cheers!